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150 Watt 15000K Metal Halide Bulb - XM, Double-Ended
Information

The XM 150W double-ended metal halide bulb offers good coloration and intensity. The color is between an 10,000K bulb and a 20,000K bulb: white with a distinct blue tint. This bulb will work with standard magnetic ballast, magnetic pulse-start ballast, magnetic HQI ballast or elextronic IceCap ballasts. An excellent choice for nano-reefs and other reef tanks up to 22" deep.

15,000K Color Temperature

Excellent with or without actinic supplementation

Operate on a HQI metal halide ballast or electronic ballast

Common questions/problems concerning metal halide lamps:

Metal halide lamps of the same kind are different colors?Metal halide lamps operate by passing an electric arc through an arc tube that excites particles in the arc tube. When the metal particles reach an excited state they emit energy in the form of visible light. It takes 100 hours of operation before the metal particles stabilize and become a consistent color. All metal halides require 100 hours of operation before color and light output stabilize. All metal halides inherently have a slight color variation between individual lamps.

The metal halide lamp fires and then either burns dull or the arc extinguishes?Usually the ballast and lamp are not receiving enough power. Metal halides pull a high current. Usually the problem is either there is too great a load on the circuit or the extension cords are of a small wire size and can`t handle the power needed by the ballast. Use only heavy duty extension cords and try running a ballastoff a circuit from another part of the house.

Do I need a cover shield between the lamp and the aquarium?Metal halide lamps produce a large amount of UV and also have a potential of exploding. The single ended metal halide lamps have an outer jacket which eliminates most of the UV. However, they have an inherent risk of exploding and UL requires metal halide lamps to be enclosed. On double ended lamps there is no UV shield. Double ended lamps must have a glass shield or major eye injuries including blindness may occur.

Can I operate a ballast and lamp together which are designed for different wattages?Each wattage lamp and ballast are designed together for optimal performance and safety. If you over drive the lamp it may explode and shorten the life of the ballast and lamps. If you under drive the lamp it will also shorten the life of both components and also may explode. Do not mix different type wattages of lamps and ballasts.

NOTE: The bulb should be handled carefully during installation and replacement.

XM LightingXM Lighting is the leading manufacturer of high quality metal halide lamps for the aquarium industry. XM Lighting began in 2003 and took the hobby by storm with high PAR levels, high quality lamps, and world class customer service. XM Lighting quickly became the hottest selling lamp in the industry, and they`ve continued the trend by developing new lamp wattages and color temperatures to meet the ever changing demands of the aquarium hobby.

Warranty

150 Watt 15000K Metal Halide Bulb - XM, Double-Ended
Reviews

Best Double Ended

by
KRIS STONE

Excellent!

Posted: 4/1/2015 from SPRING, TX UNITED STATES

5.05

Experience Level:
Expert

Comments:This is the closet your gonna get to Radium's. I have used Phoenix and I will never use any other again. For a Sps dominant tank I love the blue color and the par is right on with the mogual base 250w Radiums

good bulb

by
MICHAEL LOFTIS

Great

Posted: 3/10/2015 from BEAVERTON, OR UNITED STATES

4.05

Experience Level:
Intermediate

Comments:This bulb is a bit more blue than one would expect for a 15K. That being said the intensity is bright enough to make up it. I've tried the XM 10k's and the Phoenix 14K's and I like the XM15k the most. The bulbs will need to be replaced at least every 12 months. Noticed significant loss of color in corals when I stretched into the 14 month range.

Defective, mislabeled or both?

by
ZACHARY VACHALEK

Unsatisfactory

Posted: 1/19/2014 from OLD MONROE, MO UNITED STATES

0.55

Experience Level:
Intermediate

Comments: I purchased the XM 15K bulb predominantly based on reviews and I couldn't be more disappointed. This was to replace a 14K Phoenix that has been performing flawlessly for 12 months. The XM bulb would not fire after multiple attempts even with a dedicated circuit. After 23 attempts I got the bulb to fire after a lot of crackeling and popping and much to my surprise, this bulb is as white as the 4.1k HIDs in my wife's Acura. Clearly, this bulb is DEFECTIVE and/or it's color has been mislabeled. After multiple attempts to fire the bulb again this morning to no avail, I'm done. I promptly put the Phoenix back and it fired fist time as it has for the last year out of the box.

Nice Color Temperature

by
ALLEN FRIEDMAN

Great

Posted: 4/18/2013 from SCOTTSDALE, AZ UNITED STATES

4.05

Experience Level:
Intermediate

Comments:I have only been running the bulbs for about a week. I switched from Ushio 20K's. Only problem is that the bulb appears to be significantly more intense than the Ushio (may just be color temperature) and as a result, I have had to shorten my light period since some corals were showing burnt tips. Time will tell.
Bulb is very well made and has far more robust insulators than the Ushios. Fit perfectly into my Hamliton Belize fixture.

Excellent Bulb for 8 Months

by
Brandon

Excellent!

Posted: 10/3/2012 from OWINGS MILLS, MD

5.05

Experience Level:
Expert

Comments:I have been using this XM bulb for 3 years now (changed the bulb every 8 months during mentioned 3 years), and am very satisfied with the stability of the light and it's reliable firing when used with reef timers. For a 15K bulb, they are a bit more blue than one would expect but I enjoy that look. These bulbs especially make fluorescent coral pigments pop when used with actinic T5's, and some Blue LED strip lights. The tank I'm using this bulb in conjunction with is 3 feet deep and I have no issue with penetration for clams and bottom dwelling corals. For their price you shan't find a better & more reliable bulb (in my opinion).

XM 15000k best with t5's

by
RYAN NOVAK

Excellent!

Posted: 10/6/2011 from Nanticoke, PA UNITED STATES

5.05

Experience Level:
Expert

Comments:XM 15000k 250 watt metal halide bulbs have the best color to really enhance the color of sps, lps, and soft corals. The exact look of the bulbs are a white color with a hint of blue, they go excellent with actinic blue t5 bulbs, this really makes the corals explode with color. The XM's also go great with 10000k t5 bulbs this changes the spectrum to less of a blue tint but really brightens up the tank with a mix of blue and white from the XM's and a hint of natural day light with the 10000k t5's. Both combinations go excellent with this type of metal halide bulb, it is what the hobbyist prefers.